a river of North America, the second in size of those of New Brunswick, is formed by two branches, called the N.W. and the S.W. Miramichi respectively; and after a course of about 100 miles, falls into the Gulf of St Lawrence, forming by its estuary the Bay of Miramichi. The banks of the river and the adjacent country are covered with pine forests; and timber is exported in large quantities from the river and bay. The mouth of the Miramichi is impeded by a sand-bar; but there is sufficient depth of water for vessels of 600 or 700 tons; and the river is navigable for a distance of 40 miles from its mouth. The most important towns on its banks are Newcastle and Chatham. The bay is about 20 miles wide at its mouth, and stretches inland for 21 miles. It contains several islands, the principal of which are Fox Island and Portage Island.